Blacklists Compared

24 July 2004

Survey results for all known public IP-based DNS blacklists.
Lookups were done on connecting IP addresses. The "union of most
IP zones" line excludes the exemptions.ahbl.org and
query.bondedsender.org zones because they are not
blacklists, and because it is too aggressive to be widely useful
the block.blars.org zone is also excluded.